The bowden tube in the speedy spider does not press up against the hot end and my PLA filament gets a slight bulge in the gap and stops feeding. I have reduced retraction to 3mm at 25mm/s but it still jams after a few retractions. I’m thinking the only solution is to fit the old screw in bowden tube end by drilling and tapping. Are there any other solutions? I can’t believe the design is so poor.